Walking is generally considered as a natural and obvious activity for utilitarian or recreational purposes. Yet, that activity is complex to conceptualize. First, it includes a continuum of pedestrian users with various abilities to move. For instance, anyone can someday be confronted with a situation of disability and can have to face the environment. Second, beyond the accessibility issue, the mobility and walking behaviours are also influenced by a set of needs and criteria: feasibility, usefulness, safety, environmental and physical comfort, pleasure and sense of belonging. Besides, peoples’ routes in urban environment are also varying following the trips objective. Included in an interdisciplinary approach, this research argues that to ensure a city suitable for daily walking, it is essential to take into account the specificities of everyone and of situations that may affect pedestrian travels. However, regarding the literature, only few models integrate individualized solutions based on user's characteristics (motor function, health, gender, age, BMI, etc.) and environmental properties (slope, texture, width, etc.). Generally, these are based on generic profiles. In order to capture the best variability of walking, only a multi-scalar and a “multi-user” approach of the human-environment relationship is relevant. For this purpose, the use of a GIS-based (geographic information system) approach provides solutions to model, analyze and visualize human-environment interactions during walking trips. For this purpose, creating a model of pedestrian trips in an intra-urban area via Geographical Information System (GIS) not only provides a support of modeling, analysis and visualization but also a decision tool for both people and decision makers (planners, associations) at various scales (address, length, neighbourhood and district). The innovation of this approach lies in the desire to offer an inclusive tool which integrates the interrelationships among a variety of pedestrian users and the environment in ...